started the entropy functions
Merge branch 'master' of github.com:Siacoin/Sia
Added some entropy functions, with some tests
added skeletons for the crypto fuctions
Update Makefile, address github PR comments

'make' now no longer runs 'make test', 'make test' is no longer
automatically verbose, and 'make test-verbose' is verbose. Renamed
'Entropy()' to 'EntropyBytes' (still debating that name though), renamed
'MergeEntropy()' to 'DRNGSeed' and made some general performance
enhancements, and improved the syntax and readability of the code.
Merge pull request #9 from DavidVorick/master

Add entropy functions
Setup States and Initialization for Swarm Creation
Add SiaRandomNumber

Quick fix on the Makefile, entropy_test.go reduced to 1 function, struct
State removed and all variables added to struct Blockchain. Every piece
of the entropy process should be complete at this point.
Merge pull request #10 from c00w/master

Setup States and Initialization for Swarm Creation [WIP not ready for merge]
Fix newline spacing
Resolved merge conflict
What Makes Sia Cool?
Merge branch 'master' of github.com:Siacoin/Sia
Merge pull request #11 from DavidVorick/master

Add SiaRandomNumber